Thanks everyone for your Input! I will read everything and consider my next steps.
@running wild: i do have a chronic Gastritis apparantly. They didnt wanna know where it comes from, doctors in Germany dont Care. Pretty much non-caring idiots.
@astroman: thanks for Sharing your list with me
@MichiganLymie: thanks for Sharing your thoughts
@garz: thanks for Sharing your experience with keto diet!
cheers